Typewriting machine



193 7. c. GABRIELSON El AL 2,099,011

TYPEWRITING MACHINE Filed May 11, 1936 2 Shets-Sheet 1' INVE NTORS carZGabnelsm a? ATTORN EY5 Nov. 16, 1937. c. GABRIELSON ET AL TY'PEWRITINGMACHINE 2 Sheets-Sheet? Filed May 11, 1956 INVENTORS afirz'elsalz/ &

ATTORN EYS Patented Nov. 16, 1937 UNlTED STATES was.

PAT

TYPEWBIITING MACHINE tion of New York Application May 11, 1936, SerialNo. 79,028

13 Claims.

Thisinvention relates to improvements in typewriting machines and moreparticularly to the tabulating mechanism of such machines.

The principal object of the invention is to provide a typewritingmachine having an improved key-set tabulating mechanism.

A further object of the invention is to provide .in a tabulatingmechanism simple and efiicient key-controlled means whereby column stopsfor a traveling carriage may be either individually and selectively setin operative and inoperative or cleared position or may all besimultaneously set in inoperative or cleared'position.

Another object of the invention is,to provide an improved constructionof the settable column stops, and of the mounting for said stops, of akey-set tabulating mechanism.

Another object of the invention is to provide an improved constructionof column stops, column stop mounting means, and key-controlled settingmeans for the column stops.

To the foregoing and other ends which will hereinafter appear, theinvention consists of the improved features of construction, andarrangements and combinations of parts and devices set forth in thefollowing description and particularly pointed out in the appendedclaims.

In the accompanying drawings, which illustrate the preferred embodimentof the invention:

Fig. 1 is a fragmentary sectional view of a typewriting machine havingthe invention embodied therein, the section being taken on the line l-Iof Fig. 3, and the parts of the stop setting means being shown inneutral or idle position;

Fig. 2 is a fragmentary sectional view of the machine taken on the line2-2 of Fig. 1;

Fig. 3 is a fragmentary sectional view of the machine taken on the line3-3 of Fig. 1, certain parts being broken away for clarity ofillustration of the stop setting means;

Figs. 4 and 5 are detail views illustrating, respectively, the settingof a column stop individually in operative position, and the setting ofa column stop individually in inoperative or cleared position;

Fig. 6 is a detail sectional View taken approximately on the line 6-6 ofFig. 1; and

Fig. '7 is a detail view showing in elevation part of the right hand endof the platen carriage.

The invention has been shown embodied in an L. C. Smith typewritingmachine, only so much of this known machine as is necessary for a clearunderstanding of the present invention having been illustrated in thedrawings. The platen carriage Iii of the machine supports the platen l land is mounted, as usual, on the stationary main framework !2 of themachine to travel back and forth transversely of the machine and to beletter spaced from right to left under control of the usual carriageescapement mechanism (not shown). The carriage of the machine isreleasable from control of said escapement mechanism by the usualescapement release or carriage release mechanism (not shown) for runningor tabulating jump movements of the carriage from right to left.Adjacent opposite ends of the carriage, and fixedly held to thecarriage, are two brackets I3 which support the respective ends of acolumn stop carrying bar M with said bar extending horizontallytransversely of the machine. The stop bar, at each end thereof, isfixedly held to the adjacent bracket l3 by a screw l5. Excepting theconstruction of the stop bar I 4, the parts above mentioned areconstructed substantially as in the L. C. Smith machine referred toabove, and substantially as shown in the prior Patent No. 1,826,763,granted October 13, 1931. The improvements will now be described.

The stop bar I4 is of oblong cross-section and is held to brackets I3with its two wider faces disposed in superposed horizontal planes.Formed in the front edge of the bar is a series of column stop spacingand guiding grooves or slots l6 each extending vertically entirelyacross the front face or edge of the bar. Formed in the rear edge of thebar is a corresponding series of column stop spacing and guiding groovesor slots 11 each of which extends vertically entirely across the rearface or edge of the bar, each slot I! being directly opposite adifferent one of the slots IS. The slots of each series are spaced aletter space apart, and there is one slot l 6 and an opposed slot I! foreach letter space position of the platen carriage. Settable column stopsl8, one stop for each letter space position of the carriage, arerockably mounted on the stop bar, certain of the stops l8 being omittedfrom the drawings for clarity of illustration.

A stationary pivot rod I9 for the series of stops [8 extendshorizontally transversely of the machine across all of the slots 16 andis fixedly held in an undercut groove 2|] formed in the front face ofthe stop bar I4. Each stop 18 comprises a toothed sheet metal sectorpivoted on rod l9 and guided in an opposed pair of the slots l6 and H,the toothed arcuate edge of each sector having three teeth 2|, 22 and23. Each sector-like stop 18 is provided, between its pivot and itstoothed edge, in its lower edge with a clearance recess or notch for thestop bar, which recess or notch permits limited rocking of the stopabout its pivot relatively to the bar andalso provides limiting stop orabutment portions 24 and 25 on the column stop spaced apart forengagement of said portion 24 with the top face of bar M to limitrocking of the stop rearward and downward about its pivot and forengagement of said portion 25 with the bottom face of bar 24 to limitrocking of the stop forward and upward'about its pivot. Portions 24 and25 of each stop are arranged to engage the respective ones of said barfaces between the inner ends of the pair of opposed slots l6 and Ii inwinch the stop is guided and rocks. The toothed edges of stops l8 facein general rearwardly and upwardly in the machine. I

When 'a stop i8 is rocked in one direction to the limit permitted byabutment 24it' is in its operative position, and when the stop is rockedin the opposite direction to the limit permitted by abutment 25 it is inits inoperative position.

To releasably hold the stop in either of said positions when shiftedthereinto, each stop has at one of its side faces a resilient latchfinger 25, which finger is fixedly held at one of its ends to the stopat 27 and has adjacent its other and free end two forwardly extendingprojections 28 and 29 having rounded end edges alternatively engageablein a longitudinal groove 38 formed in the rear edge or face of stop bar[4. Projection 28 is adapted to snap intogroove 38 when abutment 24engages the top face of bar I4, and projection 29 is adapted to snapinto groove 30 when abutment 25 engages the bottom face of bar l4, as isbest shown in Figs. 1, 4, 5 and '7. 7

There is provided on the platen carriage [keycontrolled means operableto rock simultaneously into inoperative position all column stops l8which are in operative position when said keycontrolled means isactuated. There is also provided on the machine frame key-controlledmeans whereby any selected column stop may be rocked independently ofthe other column stops from either its operative position or inoperativeposition to the other one of Said two positions. Theaf-oresaidkey-controlled means on the carriage and the aforesaid key-controlledmeans on the machine frame will now be described.

Extending horizontally transversely of the machine above bar 14 andjournalled in the brackets l3 fixed to the platen carriage, is a rockshaft 3| having a pendent rigid fin 32 extending therealong, which finextends down between teeth 2! and 22 of the stops l8. A spring 33 coiledabout shaft 3i adjacent one end of the shaft has its ends engaged withthe fin 32 and with a projection 34 on one of the brackets 3 to normallyurge the shaft and fin into, and hold them in, the position shown in thedrawings. At the opposite end of shaft 3! there is fixed on the shaft asector gear 35 the teeth of which mesh with the teeth of the sector geararm of a two-arm key lever 35, the other arm of which key lever isformed with a key 3?. Key lever 36' ispivoted on the adjacent bracket H3at 38 to rock up'and down about a horizontal axis which extendstransversely of the machine. The sector gear arm of lever 36 is providedwith a stop finger 39 which is normally engaged over a stop pin 48 heldto the adjacent bracket l3, said stop finger and pin serving to arrestreturn movement of the key lever, rock shaft and rock shaft fin byspring 33 with the said parts positioned as shown in the drawings. Upondepression of key 31, all operatively set ones of the stops l8 will berocked into inoperatively set position by the resultant forward andupward movement (clockwise movement as viewed in Fig. 4) of fin 32, andthe stops will remain inoperatively set upon return or upward movementof key 31 (as is obvious from Figs. 5 and 7, for example), the spacingapart of teeth 2| and 22 being sufficient to permit any stop to rockfrom operative to inoperative position or vice versa without rocking fin32 from normal position, and also being such that both operatively andinoperatively set stops may travel with the carriage without obstructionof carriage travel by reason of teeth 2! and 22 engaging the fin 32.

The stop setting means on the machine frame whereby individual columnstops may m set in operative position or in inoperative position, asdesired, will now be described. Said means comprises an individual stopsetter or setting device rockably mounted on the machine frame to swingabout an axis which extends horizontally transversely of the machine,which. device isengageable with but a single column stop at a time andis engageable with the respective column stops letter space position ofthe carriage which is different for each column stop. Said setter ordevice comprises a yoke 4| the legs of which are pivoted at their rearends on a fixed pin 42 which extends horizontallytransversely of themachine and is staticnarily mounted in the framework I2 of the machineabove and rearward of stop bar !4. The cross-bar of the yoke is to thefront of the yoke pivot but rearward of the teeth of the sector-likecolumn stops l8. One 'leg of the yoke is formed with a stop-settingfinger 43 which extends forward beyond the yoke cross-bar.

By the following key-controlled means, the stop setter 4 i43 is rockableby key-applied force into either the position shown in Fig. 4 or theposition shown in Fig. 5 and is automatically returned from either ofsaid positions (upon release of the key-applied force), to an idle ornormal neutral position intermediate said two positions, which idle orneutral position of the setter is that in which it is shown in Figs. 1and 3. Forward of the yoke pivot 42'there is pivotally held at 44 to theright hand leg of yoke 4| the upper end of a vertically disposed andvertically reciprocable rigid link 45. Link 45 is guided adjacent itsupper end in a slot 46 in framework !2, is guided adjacent'its lower endin a slot 41 in a guide comb 48 held to framework l2,

and substantially midway its ends said link is guided in a slot 49 in aboss 5i] formed on the framework l2. A pin 5| extends horizontallytransversely of the machine through slotted boss 55 and is stationarilyheld therein. Link 45 has a vertical guide slot 52 therein through whichpin 5! extends to guide the link substantially vertically and to limitup and down movement of the link relatively to the pin and the frameworkl2, said pin, in the idle neutral position of the setter 4l-43,extending through slot 52 midway the ends of the slot as shown inFig. 1. To the left of and opposite link 45 is a second verticallydisposed and reciprocable rigid link 53 held in parallelism with link 45by a rigid cross-pin or crossrod 54 which extends horizontallytransversely of the machine from the upper end of link 53 to link 45below the pivoted upper end of the latter link and is fixedly held toboth said links. Link 53 is guided similarly to link 45, having avertical guide slot 55 through which pin 5| extends and also beingguided adjacent its upper end in a slot 56 in framework [2, guidedadjacent its lower end in a slot 51. in guide comb 48, and uided also ina slot 63 in boss 50. Links 45 and 53 and their cross-connecting rod 54form a rigid upstanding link device pivotally held at its upper end tostop setter 4|43 and guided for substantially vertical reciprocationwithin positively fixed limits.

Said stop setter and link device are normally urged downwardly bygravitational force. To the pendent arm 58 of a bracket 59 fixedly heldto framework l2, there is pivoted, on a pivot 68 held to said bracketarm, a fore-and-aft extending stop lever 64 which is normally urgedabout its pivot in counterclockwise direction as viewed in Fig. 1 by aspring 6| into the position shown in Figs. 1 and 3, in which position astop pin 52, extending through and fixedly held in bracket arm 58,engages under the forward arm of the stop lever and downward movement ofsetter ii-43 and the link device 45-53-54 under gravitational force isstopped (with the setter in neutral position) by the engagement of therear arm of the stop lever under the lower end of link 45. While thestrength of spring 6! is such that stop lever 64 stops downward movementof the stop setter and link device under gravitational force uponarrival of the stop setter at its neutral position, the saidspring-urged stop lever 64 permits the link device to be positivelypulled downward into the position shown in Fig. 4 and also serves torestore the link device and stop setter to the idle position shown inFigs. 1 and 3 upon release of the force applied to pull the link deviceand stop setter down into the position of Fig. 4.

The following spring-returned key-actuated mechanism is provided forshifting the stop setter and link device from the position of Figs. 1and 3 into the position of Fig. 4. A bellcrank key lever 65, having aforwardly extending arm bearing a key 68 and also having a pendent arm,is fulcnumed on a pivot screw 6'! torock about a horizontal axisextending transversely of the machine, said screw extending horizontallytransversely of the machine through a bracket 68 fixedly held toframework 12, in which bracket the screw is threaded. The pendent arm ofbellcrank key lever 65 is connected by a fore-andaft extending rigidlink 69 to the pendent arm of a bellcrank lever 78. Lever 10 ispivotally supported at H on a pendent arm Bl of bracket 59 to rock abouta horizontal axis extending transversely of the machine, and has aforwardly extending arm which is provided with a pin 12 which extendshorizontally transversely of the machine through a closed vertical slot13 formed in link 53 adjacent the lower end of said link. Bellcrank 18is normally urged about its pivot in one direction (clockwise directionas viewed in Fig. 1) by a return spring 14 into the position shown inFigs. 1, 2 and 3 in which said spring holds key lever 65 and bellcrank10 in normal position, with pin 12 midway the upper and lower ends ofslot 13 and with the pendent arm of bellcrank iii rocked forward againsta stop pin 85 projecting from arm 8!.

The following spring-returned key-actuated mechanism is provided forshifting the stop setter and link device from the position of. Figs. 1and 3 into the position of Fig. 5. A bellcrank key lever 15, similar tokey lever 55 and bearing a key 16 on its forwardly extending arm, isfulcrumed on a pivot screw l! to rock about a horizontal axis extendingtransversely of the machine, said screw extending horizontally transversely of the machine through a bracket 18 fixedly held to frameworkl2, in which bracket the screw is threaded. The pendent arm of key lever15 is connected by a fore-and-aft extending rigid link E9 to the pendentarm of a bellcrank lever 80. Lever 88 is pivotally supported at 95 onthe pendent arm 58 of bracket 59 to rock about an axis extendinghorizontally transversely of. the machine, and has a rearwardlyextending arm which is provided with a pin 82 which extends horizontallytransversely of the machine through a closed vertical slot 83 (similarto and opposite slot 13) formed in link 45 adjacent the lower end ofsaid link. Bellcrank 88 is normally urged about its pivot in onedirection (clockwise direction as viewed in Fig. 1) by a return spring84 into the position shown in Figs. 1, 2 and 3 in which said springholds key lever i5 and bellcrank 88 in normal position, with pin 82midway the upper and lower ends of slot 83 and with the pendent arm ofbellcrank 89 rocked forward against the stop pin 62 carried by bracketarm 58.

The lost-motion pin-and-slot connections between the link device 4553-54and the two keyactuated spring-returned mechanisms last above describedpermit shifting of the link device by either of said key-actuatedmechanisms without imparting movement to the other one of saidkey-actuated mechanisms.

The thickness transversely of the machine of. finger 43 of the? stopsetter 4l-43 is substantially equal to that of each column stop l8,

and in each letter space position of travel of the carriage a differentstop I8 is located in the same vertical fore-and-aft plane through themachine in which the finger 43 lies. The spacing apart of teeth 22 and23 of each stop 18 is such that, during travel of the carriage when thestop setter is in neutral position, tooth 22 of each stop will passabove finger 43 and tooth 23 of each stop will pass below finger 43whether the stop be set in operative position or in inoperativeposition. Said spacing apart of. teeth 22 and 23 of each stop is alsosuch that, when the carriage is in a letter space position, the stop forthat position of the carriage is rockable downwardly into operativelyset position by the action of finger 43 on tooth 23 (as shown in Fig. 4)upon depression of key 66, or is rockableupwardly into inoperatively setposition by the action of finger 43 on tooth 22 (as shown in Fig. 5)upon depression of key it, and said stop, after release of pressure oneither of said keys, will remain in that position into which it wasshifted by the depression of the key.

When, and only when, any stop I8 is in its operatively set position,tooth 23 of. the stop will travel with the carriage in a path in whichsaid tooth is adapted to abut a settable counter stop 86 mounted on theframework [2. Counter stop 86 comprises an upstanding stop lever pivotedintermediate its ends on pin 5i and guided in a slot 87 in framework l2,guided in a slot 88 in comb '48, and guided in a slot 88 in boss 58. Theupper, or stop tooth engaging end of stop lever 86 is normally heldretracted in slot 81 out of the path of teeth 23 of operatively setstops l8 by means of a return spring 98 for the stop lever, and isrockable into said path of tooth travel by means of a bellcrank keylever 9!. Key lever 9i has two forwardly extending arms bearing a key92, and also has a pendent arm which is connected by a rigidfore-and-aft extending link 93 with the lower end of counter stop lever86. Bellcrank keylever 9! has a hub which is journalled on the innerends of the pivot screws 6'! and El. Counter stop 85, upon actuationthereof into set position, preferably actuates the escapement releasemechanism of the machine to release the carriage for a tabulatingrunning or jump travel from right to left through means similar to thatshown in the prior patent hereinbefore mentioned. The upper end of stop86 normally abuts at its rear edge the rear end of slot Bl. A suitablereturn spring 94 is pro-- vided for key lever 9|.

What we claim is:

1. A typewriting machine having a tabulating mechanism which comprisestwo rockable stop setters and a series of independently rocka'ole columnstops, each of which stops comprises a toothed sector having threeteeth, said series of stops and one of said stop setters being mountedto travel in unison relatively to the other stop setter with said onestop setter extending into one of the two tooth spaces between the teethof each said stop, said one stop setter being rockable to simultaneouslyset in inoperative position all operatively set ones of the stops, andthe other stop setter being rockable to individually set the stops ineither operative or inoperative position and being normally held in anidle position in Which'it extends into the other tooth space of each oneof said stops at a different point in the relative travel between saidstop setter and the series of stops.

2. A typewriting machine having a tabulating mechanism comprising aseries of traveling column stops each comprising a toothed sector andpivoted to rock independently of all the others about an axis parallelto the path of travel. of the series of steps into inoperatively andoperatively set positions, a non-traveling stop setter pivoted to rockabout axis parallel to the path of travel of the series of stops andnormally urged into an idle position in which the stops are successivelyregistrable therewith, whether operatively or inoperatively set, withsaid setter extending into a given tooth space of the registered stopwhich is the same for all stops, said'stop setter when shifted indiiferent directions from idle position and returned thereto beingadapted to set a stop registered therewith in difierent ones of its setpositions and leave it there.

3. A typewriting machine as claimed in claim 2, wherein thereis'provided a second stop setter which is mounted to travel with theseries of stops and rock about an axis parallel to the path of travel ofthe series of stops, which second stop setter extends into another toothspace of all stops, and is normally urged into an idle position fromwhich it is rockably shiftable in one direction only, in shifting fromwhich idle position the second stop setter will inoperatively set alloperatively set stops, and in returning to which idle position thesecond stop setter will leave all of the stops inoperatively set.

4. A typewriting machine as claimed in claim 2, wherein there isprovided a non-traveling counterstop for the column stops, andkey-controlled means for shifting said counterstop from a normal idleposition out of the path of travel of both operatively and inoperativelyset column stops into an operative position in which the counterstop isin the path of travel of a tooth of each of the operatively set onesonly of the column stops.

5. A typewriting machine having a tabulating mechanism comprising aseries of settable col-V umn stopsarranged side by side and eachcomprising a toothed sector pivoted to'swing independently of all theothers into operatively and inoperatively set positions, meansmaintained in the same tooth space of all stops and operable to set thelatter in inoperative position, and means operable in another toothspace of the stops, and in that tooth space of only one stop at a time,to set and leave any one of the stops in either operative position or ininoperative position as desired.

6. A typewriting machine having a tabulating mechanism comprising acolumn stop carrying bar slotted at opposite edges of the bar, a seriesof column stops each comprising a toothed sector pivotally held to saidbar adjacent one of said slotted edges of thebar to rock relatively tothe bar between operatively and inoperatively set positions and eachguided in two of said slots at different ones of said opposite slottededges of the banand means coactive with the teeth of said stops foroperatively and inoperatively setting said stops. 7. A typewritingmachine having a tabulating mechanism comprising a column stop carryingbar slotted at opposite edges of the bar, a series of column stops eachcomprising atoothed sector pivot-ally held to said bar adjacent one ofsaid slotted edges of the bar to rock relatively to the bar betweenoperatively and inoperatively set positions and each guided in two ofsaid slots at diiierent ones of said opposite slotted edges of the bar,means coactive with the teeth of said stops for setting said stops inoperative and inoperative position, and a counterstop settable to coactwith a given tooth of each operatively set stop.

8. In a typevvriting machine, tabulating mechanism comprising twokey-actuated spring-returned means mounted on the frame of the machine,a platen carriage mounted to travel relatively to the frame of themachine, a series of settable column stops mounted to travel with thecarriage and for shifting independently of each other relatively to thecarriage into operatively and inoperatively set positions, means on themain frame oppositely shiftable by said two keyactuated means from anormal idle position to which said oppositely shiftable means isautotomatically returned upon spring-return of each of said key-actuatedmeans, said oppositely shiftable means and said stops being coactive forsetting said stops one at a time by said means in operative positionupon actuation of one of said key-actuated means and in inoperativeposition upon actuation of the other key-actuated means, said oppositelyshiftable means comprising a pivoted stopsetter and a link devicependent from said setter and connected with both said keyactuated meansfor longitudinal movement thereby in opposite directions from a normalidle po sition, a spring-urged lever normally urged upward under saidlink device and supporting the latter with said link device and stopsetter in normal idle position, and a stop against which said lever isnormally spring urged.

9. In a typewriting machine having a platen carriage which travels backand forth on the frame of the machine, tabulating mechanism fortheearriage comprising a series of column stops mounted side by side forrocking of each stop independently of all the others about an axis whichis parallel to the path of travel of the carriage into operatively setand inoperatively set positions in each of which the stop will remainuntil positively rocked therefrom, each stop having a pair of opposedabutments spaced apart around its axis, and a setter for said stopsmounted for rocking of said setter in each of two opposite directionsabout a second axis parallel to the first-mentioned axis out of a normalidle position of the setter into which the setter is normally urged,said step setter and series of stops being mounted one on the carriageof the machine and the other on the frame of the machine forpresentation of said stops one at a time to the setter with the setterinterposed between the spaced abutments of the stop presented theretofor rocking of the presented stop alone by the setter from either of thetwo set positions of the stop to the other, the presented stop beingrockable into its different set positions by thrust of the setter aainst dififerent ones of the stop abutments during rocking movement ofthe setter in different directions from the idle position of the setter,and each stop having the pair of abutments thereon so spaced about thestop axis that the setter is ineffective throughout the return movementof the setter to idle position to exert thrust on either of saidabutments of a stop presented to the setter.

10. A typewriting machine of the kind having tabulating mechanism forarresting a traveling platen carriage of the machine in any selected oneor more of the letter-space feed positions of the carriage, wherein saidtabulating mechanism comprises a stop carrying bar slotted at twoopposite edges of the bar, a stop pivot member held to the bar andextending across the slots at one edge of the bar, a series of stopspivoted on said pivot member and each guided in a different pair of saidslots, one slot of each pair at each of said edges of the bar, saidslots and stops being so arranged and of such number that there is onestop for each letter-space feed position of the carriage, each stophaving two spaced and opposed abutments engageable with said bar toarrest rocking of the stop about said pivot memher with said stop inoperatively and inoperatively set positions, detent means carried byeach stop and coactive with said bar to detain each stop in eitheroperatively or inoperatively set position, means coactive in each letterspace feed position of the carriage with a different and single one onlyof said series of stops to rock that stop to either operatively orinoperatively set position and leave it there, and counter stop meansfor coaction with operatively set ones of said series of stops to arrestthe carriage in letter space feed positions determined as to number andposition by operatively set ones of said series of stops.

11. A typewriting machine as claimed in claim 10, wherein the meanscoactive in each letter space feed position of the carriage with adifferent and single one only of said series of stops comprises a stopsetter normally urged into an intermediate idle position from which itis oppositely rockable about an axis parallel to said stop pivot member,and wherein each stop of said series of stops has two opposed abutmentsspaced about said pivot member for thrust by said setter upon differentones of said abutments to respectively operatively and inoperatively setthe stop and leave it so set, the operative or inoperative setting ofthe stop being dependent upon the direction of rocking of the setterabout its axis.

12. A typewriting machine as claimed in claim 10, wherein there isprovided a universal stop setter rockable about an axis which isparallel to the pivot member for said series of stops, which stop setteris normally urged into an idle position from which it is rockable aboutsaid axis to inoperatively set all operatively set stops of the seriesof stops and leave them so inoperatively set, and each stop of saidseries of stops is provided with an abutment presented at all letterspace feed positions of the carriage for thrust of said universal stopsetter against said abutment to rock the stop to inoperatively setposition, if said stop be operatively set, during rocking of theuniversal setter out of its idle position.

13. In a typewriting machine having a traveling platen carriage mountedon its frame and a series of column stops mounted on the carriage forindividual shifting to operative and inoperative positions, stop-settingmeans for said stops comprising a pair of bellcrank key levers iuicrumedon the machine frame and each hav ing a forwardly extending key-bearingarm and a pendent arm, a pair of links each pivoted to the pendent armof a different one of the respective key levers and extending rearwardtherefrom, a pair of bellcrank sub-levers fulcrurned on the frame andeach having a pendent arm, each of said links being pivoted at its rearend to the pendent arm of a different one of said bellcrank sub-levers,one of said sub-levers having a forwardly extending arm and the otherhaving a rearwardly extending arm, and means on the frame connected withthe two last-mentioned arms of the sub-levers for shifting of said meansin opposite directions from a normal idle position upon depression ofthe key-bearing arm of difierent ones of the key levers, saidlast-mentioned means being effective on each column stop, in a positionof travel of the carriage which is different for each stop, to set thestops individually into operative or inoperative position and leave themthere, the position into which a stop is set and left by saidlast-mentioned means being dependent upon which one of the bellcrank keylevers is actuated to set the stop.

CARL GABRIELSON. CHARLES WAUCQUEZ.

